US5857896A - Method and device for the fine machining of spur or helical gear wheels - Google Patents

Method and device for the fine machining of spur or helical gear wheels Download PDF

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Publication number
US5857896A
US5857896A US08/872,132 US87213297A US5857896A US 5857896 A US5857896 A US 5857896A US 87213297 A US87213297 A US 87213297A US 5857896 A US5857896 A US 5857896A
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United States
Prior art keywords
wheel
toothed
axis
work
grinding
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US08/872,132
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English (en)
Inventor
Horst Stollberg
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Reishauer AG
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Reishauer AG
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Assigned to REISHAUER AG reassignment REISHAUER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STOLLBERG, HORST
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
    • B23F17/006—Special methods or machines for making gear teeth, not covered by the preceding groups using different machines or machining operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/05—Honing gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • B23F23/1225—Arrangements of abrasive wheel dressing devices on gear-cutting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/075—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms

Definitions

  • a method and a device according to the introductory clause of claims 1 and 2 are known from DE-PS 3150961.
  • a work-piece spindle axis crosses a tool spindle axis at an angle of less than 90° between the axes.
  • the globoid grinding worm engages the entire width of the work-piece toothed wheel at the same time.
  • feeding first goes to the desired axis distance. Then, a positive and subsequently a negative additional rotational movement is superimposed over the synchronous rotational movement of the work-piece.
  • a toothed dressing wheel Mounted on the work-piece spindle in addition to the work-piece is a toothed dressing wheel that is identical to the work-piece in shape but is coated with grains of hard material.
  • the grinding worm is periodically dressed by means of this toothed dressing wheel. Since, during grinding according to the above method, the grinding marks run essentially in the direction of the flank because of the large crossing angle of the axes, it is familiar to subsequently hone the toothed wheels ground on the above device on separate honing machines, typically with honing wheels with internal toothing, to improve the noise characteristics.
  • a continuous generating grinding process is known from DE-PS 37 07 664, in which grinding is carried out with a cylindrical grinding worm. During grinding, the grinding worm is shifted axially and at the same time tangentially and slightly radially to the work-piece. A crowned grinding can be achieved in this way.
  • a coaxial polishing worm with identical pitch and identical diameter is mounted on the tool spindle. With it, the completely ground work-piece is subsequently polished in the same clamping.
  • the present invention is based on the technical problem of indicating a method and a device of the type mentioned in the beginning that make possible a more efficient fine machining of gear wheels. This technical problem is solved by the characterizing features of claims 1 and 2.
  • FIG. 1 An perspective view of a device according to the invention.
  • FIG. 2 a side view of the work-piece spindle with mounted work-piece and a grinding wheel.
  • FIG. 1 a grinding and honing device is shown in perspective view.
  • a work-piece slide 2 Arranged able to be horizontally shifted (axis Z') on a machine foundation 1 is a work-piece slide 2 with a work-piece spindle 3 (axis C') and a tailstock 4 with a tailstock tip 5.
  • the tailstock 4 can be shifted on the slide 2 in the same direction (axis W').
  • a tool slide 6 can be shifted perpendicular (axis X) to the axis Z', vertically in the illustrated example.
  • a tool-carrier 7 On the slide 6, a tool-carrier 7 can be swivelled (axis A) around a swivelling axis 8 parallel to the axis X.
  • the globoid grinding worm 10 is mounted on the grinding spindle 9 (axis B).
  • a work-piece changer slide 11 can be shifted perpendicular (axis V) to the axis Z, horizontally in the illustrated example. It bears a swivelling head 12 that is rotatable around a swivelling axis 13 (axis D) that is perpendicular to the axis V, namely vertical.
  • Three arms 14, 15, 16 protrude from the head 12 radially to the swivelling axis 13; they can be swivelled around their longitudinal axes (axes E1, E2, E3).
  • a honing wheel 18 is lodged at the free end of the middle arm 16 rotating around an axis (axis F) that is perpendicular to the swivelling axis of the arm 16.
  • the spindle of the honing wheel 18 is connected with a drive motor, which can also be used as brake, to synchronize the honing wheel 18 with the work-piece wheel before feeding-in and to exert on the honing wheel 18 during honing an adjustable torque around the axis F in both directions.
  • the device also has a feeler 19 on a slide 20 that can be fed-in radially to the C' axis (axis Q).
  • FIG. 2 shows a section of the device during the machining of a spur-or helical gear wheel 26.
  • two toothed dressing wheels 27, 28 are mounted axially displaced on the work-piece spindle 3.
  • Their flank geometry is identical to the geometry of the flanks of the toothed wheel 26 to be ground. They are coated with grains of hard material, e.g. grains of cubical boron nitride or diamond.
  • the one dressing wheel 28 is used for the rough-profiling (roughing) of the grinding worms, the other dressing wheel 27 for fine profiling (smoothing).
  • the slide 2 is first shifted into the position in which the grinding worm 10 or the grinding worm slug (a cylindrical grinding wheel) comes into contact with the dressing wheel 28.
  • the grinding worm 10 or the slug is rough-profiled with the dressing wheel 28, in that the slide 6 is first slid in to the desired axis distance and then a small relative rotational movement first in one direction then in the other direction is superimposed over the synchronous rotational movement between the worm 10 and the dressing wheel 28.
  • the Z' position of the slide 2 for the contact of the grinding worm 10 is shifted into the dressing wheel 27 and dressing of the grinding worm 10 is finished.
  • the smoothing wheel 27 wears much less than with conventional dressing with only one dressing wheel. In this way, dressing precision is substantially increased and wear on the expensive dressing tools, particularly the smoothing wheel 27 decisive for machining precision, is minimized.
  • the two toothed dressing/profiling wheels 27, 28 may have different cutting characteristics, e.g. differently sized grains of hard material or different materials (e.g. CBN and diamond).
  • the honing wheel 18 has external toothing, unlike conventional honing wheels with internal toothing. During honing, the honing wheel 18 is braked and driven for a predetermined time with an adjustable torque, in order to machine both flanks. Alternatively, the honing wheel may also be used with dual-flank contact, wherein it is freely rotatable during the honing procedure. Because the honing takes place in the same clamping and on the same machine as the grinding, an efficient fine machining is achieved. The honing wheel 18 is also dressed with the same toothed dressing wheels 27, 28 in the same clamping. This makes possible the efficient use of these toothed dressing wheels.
  • the one toothed dressing wheel 27 may also be used exclusively for dressing the grinding worm 10 and the other wheel 28 may be used exclusively for dressing the honing wheel 18.
  • This variant has the advantage that the coating of the wheels 27, 28 can be designed optimally for the given purpose.
  • the two wheels may also have different tooth geometries, e.g., tooth height and/or tooth thickness, etc.
  • the advantages of both variants may be combined when, in addition to the two wheels 27, 28, a third roughing/dressing wheel is mounted on the work-piece spindle 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Gear Processing (AREA)
US08/872,132 1996-06-26 1997-06-10 Method and device for the fine machining of spur or helical gear wheels Expired - Fee Related US5857896A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19625520.1 1996-06-26
DE19625520A DE19625520C1 (de) 1996-06-26 1996-06-26 Verfahren und Vorrichtung zum Feinbearbeiten von Stirnzahnrädern

Publications (1)

Publication Number Publication Date
US5857896A true US5857896A (en) 1999-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US08/872,132 Expired - Fee Related US5857896A (en) 1996-06-26 1997-06-10 Method and device for the fine machining of spur or helical gear wheels

Country Status (4)

Country Link
US (1) US5857896A (it)
JP (1) JPH1058230A (it)
DE (1) DE19625520C1 (it)
IT (1) IT1292333B1 (it)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040005843A1 (en) * 2002-05-08 2004-01-08 Friedrich Breitschaft Method for dressing or profiling of an essentially cylindrical grinding worm
US20040040133A1 (en) * 2002-09-03 2004-03-04 Reishauer Ag Gear tooth and thread grinding machine
US20040235401A1 (en) * 2003-05-16 2004-11-25 Engelbert Schauer Truing tool for truing a grinding worm
US20060121827A1 (en) * 2003-02-26 2006-06-08 Erwin Junker Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools
US20060150976A1 (en) * 1998-05-05 2006-07-13 Scarrott Peter M Indicating device
US20060223417A1 (en) * 2005-04-01 2006-10-05 Klaus Sattelberger Manufacturing cell for the treatment of grinding and wheel set testing and procedures for the operation of the manufacturing cell
US20070275638A1 (en) * 2006-05-24 2007-11-29 The Gleason Works Method of maintaining a constant grinding process
US20080019077A1 (en) * 2004-06-04 2008-01-24 Coolbaugh Douglas D Formation of metal-insulator-metal capacitor simultaneously with aluminum metal wiring level using a hardmask
US20080220697A1 (en) * 2007-03-01 2008-09-11 Mori Seiki Usa, Inc. Machine Including Grinding Wheel and Wheel Dresser
US20090031544A1 (en) * 2007-08-03 2009-02-05 Wolfgang Linnenbrink Operating Method for Improving the Running Behavior of Gearwheels and Burnishing Device for Performing the Method
DE102009027128A1 (de) * 2009-06-23 2011-02-24 Tao Technology Gmbh I.G. Vorrichtung zur Verteilung elektrischer Energie an eine veränderbare Anzahl von Verbrauchern
US20110082463A1 (en) * 2008-06-05 2011-04-07 Hoya Corporation Intraocular lens inserting instrument and cartridge
US20110092139A1 (en) * 2009-10-19 2011-04-21 Jtekt Corporation Grinding machine
US20110275290A1 (en) * 2008-12-22 2011-11-10 Mitsubishi Heavy Industries, Ltd. Internal gear grinding machine and dressing method for barrel-shaped threaded tool
CN101600537B (zh) * 2006-12-13 2013-03-13 哈穆尔机器制造有限责任两合公司 用于加工毛坯的方法和用于执行该方法的加工机床
US20140206269A1 (en) * 2013-01-24 2014-07-24 Liebherr-Verzahntechnik Gmbh Tool for Grinding Toothed Workpieces Having Collision Contours
US20140357167A1 (en) * 2011-11-25 2014-12-04 Mitsubishi Heavy Industries, Ltd. Dressing method for drum-shaped gear-like grindstone, and disk dresser
JP2016083707A (ja) * 2014-10-23 2016-05-19 谷口 智洋 ドレッシング砥石を搭載するｎｃ研削盤加工装置
US9821392B2 (en) 2013-08-23 2017-11-21 Aisin Aw Co., Ltd. Rotary machining apparatus and machining method using the same
CN107530801A (zh) * 2015-03-24 2018-01-02 普罗费雷特两合公司 用于精加工带齿的且硬化的工件轮的方法和设备
WO2021018562A1 (de) * 2019-07-31 2021-02-04 Gleason Switzerland Ag Verfahren zum hartfeinbearbeiten zweier verzahnungen an einem werkstück, sowie verzahnungsmaschine, steuerprogramm, hartfeinbearbeitungskombiwerkzeuge und sensordanordnung dafür
US20220314350A1 (en) * 2021-04-01 2022-10-06 Präwema Antriebstechnik GmbH Method for Producing Twists on the Tooth Flanks of an Internally Toothed Workpiece

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100841748B1 (ko) 2005-09-09 2008-06-27 주식회사 해성산전 사이클로이드 기어 가공장치

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US3772829A (en) * 1970-07-15 1973-11-20 Toyoda Machine Works Ltd Automatic measuring device
US4122635A (en) * 1977-10-11 1978-10-31 Toyoda Koki Kabushiki Kaisha Grinding machine with a truing device
US4151684A (en) * 1976-10-15 1979-05-01 Toyoda-Koki Kabushiki-Kaisha Grinding machine with a re-truing device
US4559744A (en) * 1981-01-27 1985-12-24 Reishauer Ag Process for machining a spur gear by means of a rotating gear-like tool
US4570386A (en) * 1983-06-08 1986-02-18 Toyoda Koki Kabushiki Kaisha Regulating wheel dressing system in centerless grinder
US4683679A (en) * 1986-01-06 1987-08-04 Salmon Stuart C Grinding and dressing wheel support and release apparatus
US4760668A (en) * 1986-07-02 1988-08-02 Alfred Schlaefli Surface grinding machine and method
DE3707664C1 (de) * 1987-03-10 1988-10-13 Liebherr Verzahntech Gmbh Werkzeugmaschine zum Feinbearbeiten der Zahnflanken von vorverzahnten Zahnraedern
US4897964A (en) * 1987-11-27 1990-02-06 Schaudt Maschinenbau Gmbh Grinding machine with dressing apparatus and method of dressing grinding wheels therein
US5076020A (en) * 1987-09-11 1991-12-31 C.I.Ma.A Costruzioni Italiane Macchine Attrezzi S.P.A. Apparatus for in-situ dressing of threaded grinding wheels used in gear grinding machines
US5183026A (en) * 1991-03-28 1993-02-02 Toyoda Koki Kabushiki Kaisha Method and apparatus for dressing an angular grinding wheel
US5573449A (en) * 1994-03-16 1996-11-12 The Gleason Works Threaded grinding wheel, method of dressing, and grinding a workpiece therewith
US5591065A (en) * 1993-03-17 1997-01-07 Aisin Seiki Kabushiki Kaisha Method of dressing honing wheels

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Publication number Priority date Publication date Assignee Title
US3772829A (en) * 1970-07-15 1973-11-20 Toyoda Machine Works Ltd Automatic measuring device
US4151684A (en) * 1976-10-15 1979-05-01 Toyoda-Koki Kabushiki-Kaisha Grinding machine with a re-truing device
US4122635A (en) * 1977-10-11 1978-10-31 Toyoda Koki Kabushiki Kaisha Grinding machine with a truing device
US4559744A (en) * 1981-01-27 1985-12-24 Reishauer Ag Process for machining a spur gear by means of a rotating gear-like tool
US4635404A (en) * 1981-01-27 1987-01-13 Reishauer Ag Apparatus for machining a spur gear by means of a rotating gearlike tool
US4570386A (en) * 1983-06-08 1986-02-18 Toyoda Koki Kabushiki Kaisha Regulating wheel dressing system in centerless grinder
US4683679A (en) * 1986-01-06 1987-08-04 Salmon Stuart C Grinding and dressing wheel support and release apparatus
US4760668A (en) * 1986-07-02 1988-08-02 Alfred Schlaefli Surface grinding machine and method
DE3707664C1 (de) * 1987-03-10 1988-10-13 Liebherr Verzahntech Gmbh Werkzeugmaschine zum Feinbearbeiten der Zahnflanken von vorverzahnten Zahnraedern
US4961289A (en) * 1987-03-10 1990-10-09 Liebherr-Verzahntecknik Gmbh Machine tool for fine machining the tooth flanks of pretoothed gearwheels
US5076020A (en) * 1987-09-11 1991-12-31 C.I.Ma.A Costruzioni Italiane Macchine Attrezzi S.P.A. Apparatus for in-situ dressing of threaded grinding wheels used in gear grinding machines
US4897964A (en) * 1987-11-27 1990-02-06 Schaudt Maschinenbau Gmbh Grinding machine with dressing apparatus and method of dressing grinding wheels therein
US5183026A (en) * 1991-03-28 1993-02-02 Toyoda Koki Kabushiki Kaisha Method and apparatus for dressing an angular grinding wheel
US5591065A (en) * 1993-03-17 1997-01-07 Aisin Seiki Kabushiki Kaisha Method of dressing honing wheels
US5573449A (en) * 1994-03-16 1996-11-12 The Gleason Works Threaded grinding wheel, method of dressing, and grinding a workpiece therewith

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060150976A1 (en) * 1998-05-05 2006-07-13 Scarrott Peter M Indicating device
US20040005843A1 (en) * 2002-05-08 2004-01-08 Friedrich Breitschaft Method for dressing or profiling of an essentially cylindrical grinding worm
US20040040133A1 (en) * 2002-09-03 2004-03-04 Reishauer Ag Gear tooth and thread grinding machine
US6842954B2 (en) 2002-09-03 2005-01-18 Reishauer Ag Gear tooth and thread grinding machine
US20080139091A1 (en) * 2003-02-26 2008-06-12 Erwin Junker Maschinenfabrik Gmbh Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools
US20060121827A1 (en) * 2003-02-26 2006-06-08 Erwin Junker Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools
US7708623B2 (en) * 2003-02-26 2010-05-04 Erwin Junker Maschinenfabrik Gmbh Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools
CN100532015C (zh) * 2003-02-26 2009-08-26 埃尔温容克尔机械制造有限公司 用于制作硬质金属工具的外圆磨削的方法及所用外圆磨床
US7393261B2 (en) * 2003-02-26 2008-07-01 Erwin Junker Maschinenfabrik Gmbh Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools
US20040235401A1 (en) * 2003-05-16 2004-11-25 Engelbert Schauer Truing tool for truing a grinding worm
US7204243B2 (en) * 2003-05-16 2007-04-17 The Gleason Works Truing tool for truing a grinding worm
US20080019077A1 (en) * 2004-06-04 2008-01-24 Coolbaugh Douglas D Formation of metal-insulator-metal capacitor simultaneously with aluminum metal wiring level using a hardmask
US7511940B2 (en) 2004-06-04 2009-03-31 International Business Machines Corporation Formation of metal-insulator-metal capacitor simultaneously with aluminum metal wiring level using a hardmask
US7137869B2 (en) * 2005-04-01 2006-11-21 Zf Friedrichshafen Ag Manufacturing cell for the treatment of grinding and wheel set testing and procedures for the operation of the manufacturing cell
US20060223417A1 (en) * 2005-04-01 2006-10-05 Klaus Sattelberger Manufacturing cell for the treatment of grinding and wheel set testing and procedures for the operation of the manufacturing cell
US20070275638A1 (en) * 2006-05-24 2007-11-29 The Gleason Works Method of maintaining a constant grinding process
US8277285B2 (en) * 2006-05-24 2012-10-02 The Gleason Works Method of maintaining a constant grinding process
CN101600537B (zh) * 2006-12-13 2013-03-13 哈穆尔机器制造有限责任两合公司 用于加工毛坯的方法和用于执行该方法的加工机床
US20080220697A1 (en) * 2007-03-01 2008-09-11 Mori Seiki Usa, Inc. Machine Including Grinding Wheel and Wheel Dresser
US7797074B2 (en) * 2007-03-01 2010-09-14 Mori Seiki Usa, Inc. Machine including grinding wheel and wheel dresser
US8069566B2 (en) * 2007-08-03 2011-12-06 Wolfgang Linnenbrink Operating method for improving the running behavior of gearwheels and burnishing device for performing the method
US20090031544A1 (en) * 2007-08-03 2009-02-05 Wolfgang Linnenbrink Operating Method for Improving the Running Behavior of Gearwheels and Burnishing Device for Performing the Method
US20110082463A1 (en) * 2008-06-05 2011-04-07 Hoya Corporation Intraocular lens inserting instrument and cartridge
US8944890B2 (en) * 2008-12-22 2015-02-03 Mitsubishi Heavy Industries, Ltd. Internal gear grinding machine and dressing method for barrel-shaped threaded tool
US20110275290A1 (en) * 2008-12-22 2011-11-10 Mitsubishi Heavy Industries, Ltd. Internal gear grinding machine and dressing method for barrel-shaped threaded tool
DE102009027128A1 (de) * 2009-06-23 2011-02-24 Tao Technology Gmbh I.G. Vorrichtung zur Verteilung elektrischer Energie an eine veränderbare Anzahl von Verbrauchern
US8579676B2 (en) * 2009-10-19 2013-11-12 Jtekt Corporation Grinding machine
CN102039549A (zh) * 2009-10-19 2011-05-04 株式会社捷太格特 磨床
CN102039549B (zh) * 2009-10-19 2014-07-23 株式会社捷太格特 磨床
US20110092139A1 (en) * 2009-10-19 2011-04-21 Jtekt Corporation Grinding machine
US20140357167A1 (en) * 2011-11-25 2014-12-04 Mitsubishi Heavy Industries, Ltd. Dressing method for drum-shaped gear-like grindstone, and disk dresser
US9718139B2 (en) * 2013-01-24 2017-08-01 Liebherr-Verzahntechnik Gmbh Tool for grinding toothed workpieces having collision contours
US20140206269A1 (en) * 2013-01-24 2014-07-24 Liebherr-Verzahntechnik Gmbh Tool for Grinding Toothed Workpieces Having Collision Contours
US9821392B2 (en) 2013-08-23 2017-11-21 Aisin Aw Co., Ltd. Rotary machining apparatus and machining method using the same
JP2016083707A (ja) * 2014-10-23 2016-05-19 谷口 智洋 ドレッシング砥石を搭載するｎｃ研削盤加工装置
CN107530801A (zh) * 2015-03-24 2018-01-02 普罗费雷特两合公司 用于精加工带齿的且硬化的工件轮的方法和设备
US20180111209A1 (en) * 2015-03-24 2018-04-26 Profilator Gmbh & Co. Kg Method and Device for Precision Machining of Toothed and Hardened Work Wheels
US10610940B2 (en) * 2015-03-24 2020-04-07 Profilator Gmbh & Co. Kg Method and device for precision machining of toothed and hardened work wheels
WO2021018562A1 (de) * 2019-07-31 2021-02-04 Gleason Switzerland Ag Verfahren zum hartfeinbearbeiten zweier verzahnungen an einem werkstück, sowie verzahnungsmaschine, steuerprogramm, hartfeinbearbeitungskombiwerkzeuge und sensordanordnung dafür
US20220314350A1 (en) * 2021-04-01 2022-10-06 Präwema Antriebstechnik GmbH Method for Producing Twists on the Tooth Flanks of an Internally Toothed Workpiece

Also Published As

Publication number Publication date
DE19625520C1 (de) 1997-06-12
ITTO970474A1 (it) 1998-11-30
IT1292333B1 (it) 1999-01-29
ITTO970474A0 (it) 1997-05-30
JPH1058230A (ja) 1998-03-03

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